When we updated the IP Driver for version 11 we made two important changes; we moved from OpenSSL to LibreSSL, and (*as of version 11) the IP Server/Driver only supports secure data communications (SSL/TLS). This is covered in both the driver reference manual and the online help file, but it is easy to explain with these screenshots:

Here we specify two ports; the port used by the RMadmin program, and the port used by the Clarion desktop client app.

When connecting to the server for admin work; registering data managers, etc., we connect using the RMadmin program on the ‘Administrator Port’, and in our Clarion client app we specify to connect on the ‘Client Secure Port’. You can choose any ports that are open on your machine, just be sure your firewall allows traffic on the ports you specify.